Add LLVM back-end for ortho.

1 files changed, 57 insertions, 0 deletions

diff --git a/ortho/llvm/ortho_llvm-main.ads b/ortho/llvm/ortho_llvm-main.ads
new file mode 100644
index 0000000..56bbdb4
--- /dev/null
+++ b/ortho/llvm/ortho_llvm-main.ads
@@ -0,0 +1,57 @@
+--  LLVM back-end for ortho.
+--  Copyright (C) 2014 Tristan Gingold
+--
+--  GHDL is free software; you can redistribute it and/or modify it under
+--  the terms of the GNU General Public License as published by the Free
+--  Software Foundation; either version 2, or (at your option) any later
+--  version.
+--
+--  GHDL is distributed in the hope that it will be useful, but WITHOUT ANY
+--  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+--  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+--  for more details.
+--
+--  You should have received a copy of the GNU General Public License
+--  along with GCC; see the file COPYING.  If not, write to the Free
+--  Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+--  02111-1307, USA.
+
+with GNAT.Directory_Operations;
+with LLVM.Target; use LLVM.Target;
+with LLVM.TargetMachine; use LLVM.TargetMachine;
+
+package Ortho_LLVM.Main is
+   use LLVM.Core;
+
+   --  LLVM specific: the module.
+   Module : ModuleRef;
+
+   --  Descriptor for the layout.
+   Target_Data : TargetDataRef;
+
+   Target_Machine : TargetMachineRef;
+
+   --  Optimization level
+   Optimization : CodeGenOptLevel := CodeGenLevelDefault;
+
+   --  Set by -g to generate debug info.
+   Flag_Debug : Boolean := False;
+
+   Debug_ID : unsigned;
+
+   --  Some predefined types and functions.
+   Char_Type : O_Tnode;
+   Char_Ptr_Type : O_Tnode;
+
+   Stacksave_Fun : ValueRef;
+   Stacksave_Name : constant String := "llvm.stacksave" & ASCII.NUL;
+   Stackrestore_Fun : ValueRef;
+   Stackrestore_Name : constant String := "llvm.stackrestore" & ASCII.NUL;
+
+   Current_Directory : constant String :=
+     GNAT.Directory_Operations.Get_Current_Dir;
+
+   function To_String (C : Cstring) return String;
+
+   procedure Init;
+end Ortho_LLVM.Main;